Question

A highway is shown as a straight line on a coordinate grid. One end of the highway is located at (5, 9) and the other end is located at (3, -7). Sam performed the steps shown to find the coordinates of the midpoint of the highway.


In which step did Sam first make an error?
(3 points)

Step 1, because he used the incorrect values for values for x2 and y1.
Step 2, because he used the incorrect formula to find the midpoint.
Step 3, because he changed the positive sign to a negative sign to find y.
Step 4, because he did not use a negative sign for the x value.

Answer 1

@kymber

Answer 2

step1 x1=5 y1=3 x2=9 y2=-7

Answer 3

these are the step im not done posting the steps

Answer 4

I suggest figuring out the right answer and then comparing it to what Sam did to see what he did wrong.

Answer 5

x = 7, y = -2

Answer 6

i did

Answer 7

it was right everithing i tought it was step 2 but i i wasnt sure that why i need ur help

Answer 8

so am i right

Answer 9

Yeah, step two sounds right \(\huge\ddot\smile\)

Answer 10

Wait, I think it's step one..